3145154021 has 8 divisors (see below), whose sum is σ = 3282462144. Its totient is φ = 3007892800.

The previous prime is 3145153951. The next prime is 3145154027. The reversal of 3145154021 is 1204515413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3145154021 - 2¹⁸ = 3144891877 is a prime.

It is a super-3 number, since 3×3145154021³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145154027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 247421 + ... + 259821.

It is an arithmetic number, because the mean of its divisors is an integer number (410307768).

Almost surely, 2^3145154021 is an apocalyptic number.

It is an amenable number.

3145154021 is a deficient number, since it is larger than the sum of its proper divisors (137308123).

3145154021 is a wasteful number, since it uses less digits than its factorization.

3145154021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23451.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 3145154021 is about 56081.6727728409. The cubic root of 3145154021 is about 1465.1451080314.

Adding to 3145154021 its reverse (1204515413), we get a palindrome (4349669434).

The spelling of 3145154021 in words is "three billion, one hundred forty-five million, one hundred fifty-four thousand, twenty-one".